Quarterly report pursuant to Section 13 or 15(d)

Note 14 - Lines of Credit (Details Textual)

v3.22.2.2
Note 14 - Lines of Credit (Details Textual) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Jan. 19, 2021
Aug. 31, 2022
Aug. 31, 2021
Aug. 31, 2022
Aug. 31, 2021
Feb. 28, 2022
Debt Issuance Costs, Line of Credit Arrangements, Gross   $ 100   $ 100    
Amortization of Debt Issuance Costs   $ 10 $ 10 $ 20 $ 20  
Revolving Credit Facility [Member]            
Line of Credit Facility, Maximum Borrowing Capacity $ 5,000          
Line of Credit Facility, Interest Rate at Period End   6.00%   6.00%    
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage 0.25%          
Long-term Line of Credit, Total   $ 0   $ 0    
Revolving Credit Facility [Member] | Minimum [Member]            
Debt Instrument, Interest Rate, Stated Percentage 4.00%          
Revolving Credit Facility [Member] | Prime Rate [Member]            
Debt Instrument, Basis Spread on Variable Rate 0.50%          
Equipment Financing Line of Credit [Member]            
Line of Credit Facility, Maximum Borrowing Capacity $ 1,500          
Line of Credit Facility, Interest Rate at Period End           6.00%
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage 0.25%          
Long-term Line of Credit, Total   $ 0   $ 0    
Equipment Financing Line of Credit [Member] | Minimum [Member]            
Debt Instrument, Interest Rate, Stated Percentage 4.00%          
Equipment Financing Line of Credit [Member] | Prime Rate [Member]            
Debt Instrument, Basis Spread on Variable Rate 0.50%